The Report on Carcinogens (RoC) is a congressionally mandated listing of substances that either are known to be human carcinogens or may reasonably be anticipated to be human carcinogens, and to which a significant number of persons residing in the U.S. are exposed.

The NTP Annual Report is produced by the NTP Office of Liaison, Policy, and Review. The text is not copyrighted and can be reprinted without permission. If you use parts of the Annual Report in a publication, please provide us a copy for our records. We welcome your comments and suggestions.